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corvus
Modified 10mW Greenie
Joined: 20 Apr 2009
Posts: 22
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 Posted: 6/24/09, 8:49 AM Post subject: Just a war |
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| I orderd a couple of types of the 405 nm cheapies on ebay (star type and pointer only type)and they are very dissapointing.No beam is barely visable at night.Goes about as far as a red pointer.(500 feet)And to look blue they need to reflect on a certain type of white surface or they look like a black light.I got 3 and they are all the same,so dont waste your money bidding on these. |
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chargerman
Wicked Lasers God
Joined: 08 Sep 2005
Posts: 1784
Movie(s): 2
Location: Big Horn Mountains, Wyoming
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john lawson
Phoenix Laser
Joined: 14 Jan 2008
Posts: 84
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| Posted: 6/24/09, 8:03 PM Post subject: |
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| Make your own i just made a 6x 405 nm at 200mw its a beast |
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corvus
Modified 10mW Greenie
Joined: 20 Apr 2009
Posts: 22
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| Posted: 6/24/09, 9:14 PM Post subject: Hey John.. |
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Do you think the UV laser diode in these may just be turned down to a very low level?
Ed |
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chargerman
Wicked Lasers God
Joined: 08 Sep 2005
Posts: 1784
Movie(s): 2
Location: Big Horn Mountains, Wyoming
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| Posted: 6/26/09, 11:19 PM Post subject: Re: Hey Jo |
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| corvus wrote: |
Do you think the UV laser diode in these may just be turned down to a very low level?
Ed |
Very possible
Mine is 150mw...beam is barely visible in a darkened room with a little smoke added. During the day it's vurtually invisible. However....mine has a focusable lens, and set just right it will light "White"..yes white matchs from 20 feet away! and if your skin or "Target" is white it will burn right through white paper/linen ect.
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Best Regards Chargerman
Great divergence calculator 
http://www.pseudonomen.com/lasers/calculators/ |
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Jonazzaz
Wicked Lasers Master
Joined: 28 Nov 2007
Posts: 738
Location: Arendal / Norway
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| Posted: 9/19/09, 3:26 AM Post subject: |
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How come the violets can burn white stuff, while greenies and reds cant?
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WickedLasers, change name on the Executive series!
-"Execution series"  
 running stable @ 142mW modehopper CNI Infiniti series from Techlasers. |
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yathern
Wicked Lasers Master
Joined: 20 Aug 2006
Posts: 672
Location: Here, there.... Everywhere.
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| Posted: 9/19/09, 4:44 PM Post subject: |
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| Because in the same way that red will absorb green light, and green will absorb red. Yellow can absorb purple light. And, Also, in the 405nm range, there is alot of UV in the beam, and our eyes cant tell what does or does not reflect UV light. |
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Jonazzaz
Wicked Lasers Master
Joined: 28 Nov 2007
Posts: 738
Location: Arendal / Norway
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| Posted: 9/21/09, 2:25 AM Post subject: |
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Oh, thanks for the answer 
I understand now 
_________________
WickedLasers, change name on the Executive series!
-"Execution series"
running stable @ 142mW modehopper CNI Infiniti series from Techlasers. |
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